Feathry

Hi folks!
Did I mess something up in my mind or did someone say that Feathry also is
called Popop in America? Either way, can someone please sum up for me who
Popop (Duck?) is and what names he is known under around the world? I have
the file INTERLIN from 19/6-94, but I couldn't find any reference to Popop
there. I also wasn't able to find the file again, has the ftp-site changed?
Thanks for any help, hints etc.
Knut Hunstad
khun at veg.sintef.no